Virtualization Is An Important Component

Virtualization is a combination of software and hardware engineering that creates Virtual Machines (VMs) - an abstraction of the computer hardware that allows a single machine to act as if it were many machines, or a computer that does not physically exist as a piece of hardware. The hardware that is seen by the operating system is emulated in an effort to separate the physical hardware from operating system. This allows the virtual machine to be moved and hosted on any machine independent of hardware. Virtualization technology is possibly the single most important issue in IT and has started a top to bottom overhaul of the computing industry which is why many companies around the world have are using its softwares to enhance their business opportunities.

Purpose: The purpose of this presentation is to persuade my audience that using virtualization technology is beneficial for both organizations and the environment. I would like my audience to realize that implementing virtualization can have positive effects for organizations and the environment. My central idea is that virtualization technology cuts down on cost.

Virtual Machine Security - Full Virtualization and Para Virtualization are two kinds of virtualization in a cloud computing paradigm. In full virtualization, entire hardware architecture is replicated virtually. However, in para virtualization, an operating system is modified so that it can be run concurrently with other operating systems. VMM Instance Isolation ensures that different instances running on the same physical machine are isolated from each other. However, current VMMs do not offer perfect isolation. Many bugs have been found in all popular VMMs that allow escaping from VM (Virtual machine). Vulnerabilities have been found in all virtualization software, which can be exploited by malicious users to bypass certain security restrictions or/and gain escalated privileges. ation software running on or being developed for cloud computing platforms presents different security challenges. It is depending on the delivery model of that particular platform. Flexibility, openness and public availability of cloud infrastructure are threats for application security. The existing vulnerabilities like Presence of trap doors, overflow problems, poor quality code etc. are threats for various attacks. Multi-tenant environment of cloud platforms, the lack of direct control over the environment, and access to data by the cloud platform vendor; are the key issues for using a cloud application. Preserving integrity of applications being executed in remote machines is an open

Virtualization can reduce the number of physical systems we need to acquire, and we can get more value out of the servers. Most traditionally built systems are underutilized and Virtualization allows maximum use of the hardware investment. With virtualization, you can also run multiple types of applications and even run different operating systems for those applications on the

Virtualization is the abstraction of a hardware or software system that lets applications run on top of the virtualized environment without the need of knowing the underlying resources available. The virtualized environment is otherwise known as the virtual machine

By using virtual servers, our company is able to run everything on our physical servers. This includes our ERP, file and print, login server, applications, and mail. Our company will obtain a total of 10 Windows

It allows network administrators to create a virtual server environment by using some of the server’s resources. By doing this, it creates virtual/private servers and one of the benefits of this is that it would cost less money to use virtual servers rather than physical servers as hardware maintenance would not be required. Also, if one virtual server goes down, the others will still be left running. In the example above, there are 4 physical servers. Server Virtualization only needs one physical server to be able to create the virtual servers.

Virtualization’s rate of adoption is completely characterized by the five characteristics described in the framework for the concepts of innovation (Luftman & Bullen, 2004, p. 189). It is perceived to be better than physical servers in its ability to host multiple operating systems and share the host’s resource. Its encapsulation of resources allows it to operate as if it was a physical machine yet it is totally virtual giving it a relative advantage. It is compatible with all baseline operating systems on the market. Complexity in implementation is minimal making it more attractive to adopt. The vendors allows for free downloads and trials. Its visibility in competition with Microsoft’s Hyper-V has shown multiple advantages. (Luftman & Bullen, 2004, p. 190)

Network Based Virtualization is abstract storage of data applications from the host machine. This is well achieved through fibre channels connection between the machines and the servers running virtualization. The respective operating systems on the separate machines are not a factor to consider as they work independently. For it to achieve its expectations, the following services must be provided as below:

Virtual networking computing – Virtual networking computing is used so that companies can test the PC which perhaps at fault or has problems that

Virtualization is being able to give a physical device the power, through the use of software, to do more than that physical device was technically designed and able to do (Santana, 2014, p. 12). For example, a server can only run one operating system at a time. However, when a hypervisor is used in a server, the hypervisor is a layer of software that acts like the server itself so that many operating systems can be run from that one server. The hardware, in this case a server, has been virtualized. The goal is to use all of the computer’s resources all of the time, and the only way to do that is to have enough things running that the resources are being used consistently and efficiently. An analogy for this could be online classes. If each teacher only had one student, the teacher’s resources of time and expertise would not be utilized efficiently because that one student will not need help all day, every day. If the teacher is assigned to fifteen students, the students can still get help when needed from the teacher, and they would not even be aware that they are not alone in the class. Because it is an online class, the teacher does not need any more physical resources to teach an entire class than was needed for one student. The students are receiving the benefits of being taught by that teacher without needing to be with him or her physically.

As we all know virtualization is the requirement of future. We have evolved from the age of traditional environment to virtual environment.We have grown accustomed to almost all things virtual from virtual memory to virtual networks to virtual storage.The most widely leveraged benefit of virtualization technology is server consolidation, enabling one server to take on the workloads of multiple servers. For example, by consolidating a branch office’s print server, fax server, exchange server, and web server on a single windows server, businesses reduce the costs of hardware, maintenance, and staffing.

A more proficient IT infrastructure is required as the use of more software increases the needs of powerful and faster PCs. One of the trends that can help this issue is Virtualization. This technology is described as the “abstraction” of the physical elements (such as network resources, operating system and storage) into virtual ones (Portnoy, 2012, p.2). Virtualization allows a physical machine to run several virtual machines (VM).

Large corporations might choose to consolidate their IT system in one virtualized (and very expensive) server farm saving on hardware, support and maintenance costs over time.

The security aspects of virtualization are of vital importance.The cost benefits of virtualization allows enterprises to significantly reduce the space and electrical power required to run data centers and streamline the management of an ever-growing number of servers. Virtualization also provides means for expedient scalability. Given today 's economic climate and cost-cutting mandates, it is not surprising that a firm analyst Gartner recently predicted that 50 percent of workloads will run inside virtual machines by 2012. According to reports from Odyssey, “beyond the benefits of economic savings and enhanced flexibility in capacity planning, virtualization also introduces a number of threats and challenges to the security of organizational information. Among such threats and challenges is the increased network complexity and diminished visibility of the network traffic flowing within the virtual environment, which makes it difficult to detect Malicious “insider” Activity and Attacks. In the event that an internal malicious user or an attacker manages to compromise the virtualization layer, or hypervisor, this could lead to a compromise of all servers hosted on this virtual environment and as a result all applications and data residing in it.”